Unfortunately, Jentz doesn't know ammo load, and leaves a question mark there... But the speed was quoted to be 50 km/h! Armor of a chassis was up to 13-14 mm, superstructure was 22 mm front and 14 mm sides.

According to David Fletcher in his New Vanguard book on British Light tanks these were based on those Mk Vs and Mk VIs captured in 1940. Apparently about 50 were produced and used mainly on internal security duties in France, although obviously some went to Russia as shown in previous posts.